My favorite Calendar app is free for a limited time. App info is currently processing and/or the app is not yet fully available for sale on the US App Store. YouTube: video
I've tried alot of calendar apps and this one stands out for what my needs are. I've been using Calendar 5 for awhile now and its been a dependable and useful app. I especially like seeing something actually written within the month view as one of the many options other than just a color. I recommend at least trying it since its free and I'm sure it won't disappoint.